baber/WOPTO huggingface dataset:
Patent GB-1335888-A (GB)
Title: Photographic apparatus
IPC: G03B19/12
Filed: 1971-11-02
Abstract: 1335888 Shaft couplings; linkwork POLAROID CORP 2 Nov 1971 [2 Nov 1970] 50910/71 Headings F2K and F2U [Also in Division G2] A camera of the type shown in Fig. 1 comprises a reflex mirror 52 movable from a second position closing off a film pack opening to a first position in which it reflects scene light from the objective lens 48 to the film 40, a driving means (e.g. an electric motor) for creating this movement and a means for transmitting the movement from the motor to the mirror such that the driving means will always complete its movement even though the reflex mirror may be prevented from being fully actuated, e.g. by an obstruction in its path. The dissipated energy of the driving means is stored in a spring which is thus biased to complete the mirror actuation on removal of the obstruction. As shown the mirror is attached to a link 80 which is in turn pinned to a crank 78, having a limited movement with respect to shaft 68. The motor drives the shaft through a ram 62 and crank 64. A spring 86 is held between crank 78 and a pin 88 on the shaft and when the mirror movement is obstructed the motor turns the shaft so tensioning the spring. On removal of the obstruction the spring biases the link 80 to complete mirror actuation; a pin 94 movable in recess 92 limits this motion. The spring also allows the driving motor to exceed its travel when moving the mirror so minimizing the manufacturing tolerances required.
Patent GB-1445097-A (GB)
Title: Optical code recognition
IPC: G06K19/06
Filed: 1972-11-04
Abstract: 1445097 Badge or label PLESSEY CO Ltd 30 Oct 1973 [4 Nov 1972] 50917/72 Heading G4M A label, e.g. for luggage or an identifying badge contains a substrate carrying a plurality of light reflective or fluorescent spots or bars arranged in three similar lines connected to each other and at a non-zero angle to each other such that one line can be read independently of the other two. Preferably the lines radiate from a common point at angles of 120 degrees to each other. The spots may be glass beads and may be arranged in an error correcting code.
Patent GB-1489432-A (GB)
Title: Communication or signalling system
IPC: H04B5/00
Filed: 1974-11-25
Abstract: 1489432 Inductive communication; hearing aids COMMONWEALTH SCIENTIFIC & INDUSTRIAL RESEARCH ORGANIZATION 25 Nov 1974 [3 Dec 1973] 51009/74 Headings H4J and H4U In an inductive communication system wherein a plurality of transmitters and receivers operate on the one carrier frequency, the capture effect ensuring communication between proximate transmitter : receiver pairs, the transmitter microphone M, Fig. 1, is associated with an [FM frequency deviation limiting] audio AGC circuit, a voice operated switch responding to the diminution of the voice signal below a preset minimum value indicating cessation of speaking to disenable [FM] modulation of the transmitted carrier, the latter undergoing a frequency shift. The shift, when detected by the discriminator of a remote receiver, causes the remote receiver to be no longer receptive to the received carrier and to revert to a hearing-aid mode of operation, wherein the signal from the receiver microphone M, Fig. 2, is amplified and passes to the receiver earphone. A high frequency f.m. tone, or an a.m. signal may be transmitted instead of the frequency shifted carrier to effect reversion to the hearing aid mode. Manual means may produce the same effect as the voice operated switch. The r.f. induction field is produced by electric or magnetic dipoles, or multipole fields may be used. It is stated that the system is applicable for use in signalling to rail or road vehicles or taxiing aircraft, or for garage door control. A phase lock loop P1-P4, Fig. 1, assures that all transmitters operate at substantially the same carrier frequency.
Patent GB-1273648-A (GB)
Title: Bearings of rotary drums
Inventor: CHRISTENSEN POUL HVIDT
IPC: B02C17/18
Filed: 1970-10-28
Abstract: 1,273,648. Tube mills. F. L. SMIDTH & CO AS. 28 Oct., 1970, No. 51273/70. Heading B2A. [Also in Division F2] A rotary drum 1, Fig. 1, has at one end an axial trunnion 2 supported in a sliding contact bearing 4 .. 6. The surfaces of contact of the trunnion and bearing are part spherical. A further trunnion 3 is supported by a bearing 7 .. 10 which has a part cylindrical supporting surface 9. Lubricant is supplied via pipes 11, 12 and coolant water via spaces 13, 14. In a modification the lower parts 4, 7 of the bearing are each divided into two parts, so that the upper spherical surface portions (23) (25) of the lower parts 4, 7 are the same, Figs. 4, 5 (not shown). In further embodiments the lower most supporting member 5 (10) is flanged, or the member 4 (34) is flanged to provide a track for the member 4, Figs. 6, 7 (not shown). In a further modification a lower part 38, Fig. 8, of a movable bearing has a part cylindrical supporting surface 39, teeth 40, 41 forming a rack are provided on the base 10 at each side of the part 38. This part has teeth 42 which mesh with teeth 40, 41 to ensure perfect rolling movement. The arrangement of flanges and teeth may be combined.
Patent GB-1169060-A (GB)
Title: Front End Loaders
Inventor: HOPPE FREDERICK JOHN
IPC: E02F3/38
Filed: 1967-11-13
Abstract: 1,169,060. Shovelling machines. PACIFIC CAR & FOUNDRY CO. 13 Nov., 1967, No. 51638/67. Heading E1F. The gravitational torque of the components of a shovel-carrying boom assembly mounted on a .tractor is at all times balanced by a pressurized gas-containing, closed circuit, pistoncylinder arrangement 48 acting between the tractor and the boom so that the full engine power applicable to rams 24 controlling vertical swinging of the boom can be utilized in overcoming the torque set up by the load in the bucket during breaking out and raising of the loaded bucket.
Patent GB-1446354-A (GB)
Title: Process for the production of 1-amino-4-nitroanthraquinone-2- carboxylic esters
IPC: C07C229/74
Filed: 1973-11-08
Abstract: 1446354 Production of 1-amino-4-nitroanthraquinone-2-carboxylic esters BASF AG 8 Nov 1973 [9 Nov 1972] 51845/73 Heading C4P A process for the production of an ester of 1 - amino - 4 - nitroanthraquinone - 2 - carboxylic acid uses the compound which is reacted with an aliphatic or cycloaliphatic alcohol in the presence of an acid compound as catalyst. The process may be carried out at 100 to 180 C., and suitable catalysts are sulphuric, benzenesulphonic, p - toluenesulphonic, naphthalenesulphonic acids or mixtures of the same. Nitrobenzene, chlorobenzene, odichlorobenzene, trichlorobenzene or mixtures of the same are suitable solvents.
Patent GB-1523720-A (GB)
Title: Suppression of induced currents in cables
IPC: H01B11/18
Filed: 1975-12-02
Abstract: 1523720 Suppression of induced currents in cables DEFENCE SECRETARY OF STATE FOR 2 Dec 1975 [3 Dec 1974] 52320/74 Heading H1A For suppressing currents in the sheath of a cable such as are induced, e.g. by lightning, a cable has fitted to its sheath 1 a number of rings 9 which will reflect electro-magnetic energy passing along the sheath, spaces between rings 9 being filled by sleeves 10 of a material which will effectively absorb the energy as it is reflected back and forth between adjacent rings 9. A ring may be of a material having a non-linear voltage-current characteristic, and may have a thin metal layer 11 on its outwardly directed face. The sleeve 10 may exhibit domain wall resonance absorbtion and may consist of ferrite particles held in silicone ruber or epoxy resin. The induced current will thus be prevented from reaching equipment 2, 3 at the ends of the cable.
Patent GB-1186758-A (GB)
Title: Improvements in or relating to Detonating Apparatus
Inventor: CHLEBNA ZDENEK
IPC: F42D1/05
Filed: 1967-11-20
Abstract: 1,186,758. Control circuits for capacitor-type detonating apparatus. BLANICKE STROJIRNY, NARODNI PODNIK. 20 Nov., 1967 [19 Dec., 1966], No. 52581/67. Heading H2H. Capacitor-type detonating apparatus comprises the circuit arrangement shown, wherein the capacitor 4 is charged by a crank-actuated generator 1a, 1 and the components 10, 11, 13 ... 16 are provided to ensure that the length of the firing pulse is practically independent of the resistance of the firing circuit and that the voltage at the firing circuit varies according to the resistance to prevent electric stressing thereof. The values of inductances 13, 15 are chosen so that: (1) with the resistance at terminals 17, 18 equal to the maximum permissible resistance of the firing circuit, the members 4, 13 form a damped oscillating circuit whose period is twice the desired firing pulse length; and (2) with the terminals 17, 18 short-circuited, the members 4, 15 form a damped oscillating circuit whose period is also twice the desired pulse length. When the firing switch 12 is closed these two oscillating circuits interact to produce a pulse of the desired time duration at the terminals 17, 18. The impedance of the inductance 15 and the resistance of the firing circuit form a voltage divider and, by making the impedance equal to the maximum resistance of the firing circuit, the voltage at the terminals 17, 18 falls with decrease of resistance and vice versa. The connections 19, 20, 21 are associated with an ohmmeter incorporated in the apparatus.
Patent GB-1078660-A (GB)
Title: Steam sublimation of terephthalic acid
IPC: B01D7/00
Filed: 1965-12-14
Abstract: 1,078,660. Purification of terephthalic add by sublimation. MOBIL OIL CORPORATION. Dec. 14, 1965 [Dec. 15, 1964], No. 53035/65. Heading BIB. Terephthalic acid is purified by entraining finely-divided particles of the impure acid in a gaseous stream containing steam, preferably superheated steam at 600‹F. to effect vaporization of a substantial portion of the acid, heating the stream (if necessary) to vaporize the acid completely, separating non-volatile solid impurites (ash) from the stream, cooling the stream to condense a substantial portion of the acid in the form of freely-flowing solid particles while retaining at least a major proportion of the more volatile material in the gaseous phase, and separating the purified acid particles from the stream. The process is particularly suitable for eliminating p-carboxybenzaldehyde from terephthalic acid produced by the partial oxidation of p-xylene. Ash is separated from the hot gaseous stream, containing vaporized acid, by passing the stream through a cyclone or a filter made of sintered stainless steel. The stream is then cooled in a condenser comprising one or more U-tubes 32 each surrounded by a heating-jacket 39 and provided, at the inlet end, with steam injectors. In operating this primary condenser, the mixture of acid vapour and gaseous carrier enters tube 32 from pipe 30 and is joined by two annular streams of steam (1) superheated steam at 650‹F. supplied through line 52 to the inner annular zone, and (2) saturated steam at 350‹F. supplied through conduit 58 into the outer annular zone. Saturated steam may also be injected into the condenser tube at one or more points downstream. The cooled stream is conveyed from the primary condenser to a cyclone separator maintained at about 500‹F. by an automatic control which governs the admission of saturated steam to the condenser. The partially purified particles of terephthalic acid withdrawn from the cyclone separator are re-sublimed in a second stage, and the desired product is removed from the cyclone separator of the condenser of this second stage. The vapours from the two cyclone separators, following the two primary condensers, are united and passed to a secondary condenser comprising a U-tube, into the inlet end of which demineralized water is sprayed. The amount of sprayed water is controlled to maintain a stream outlet temperature of 380‹F. whereby slightly impure terephthalic acid is condensed and the water is vaporized. The terephthalic acid is separted in a cyclone separator, and is returned to the first sublimation stage. The gaseous stream from the separator of the secondary condenser is passed to a tertiary condenser where a waterspray condenses the residual terephthalic acid. This acid is separated in a bag filter, and the steam passes on to a barometric jet condenser which produces sub-atmospheric pressure in the system. The condensation of the terephthalic acid may also be carried out in horizontal tubes.
Patent GB-1132729-A (GB)
Title: Apparatus for use in cooking eggs
IPC: A47J29/02
Filed: 1966-11-26
Abstract: 1,132,729. Egg-cooker. W. E. RAJAKARUNA. 4 Oct., 1967 [26 Nov., 1966], No. 53054/66. Heading A4D. An apparatus for dry-cooking eggs comprises an open-top upright tubular container consisting of an outer shell with an inner tubular shell therein and spaced therefrom and having an electric heating element 4 between the two shells temperature limiting thermostat 14, a lid 17 for closing the container and carrying means for holding two or more eggs in the container. The container preferably has an outer metal shell 1 with an inner tubular metal shell 2 and, in spaced relationship between them, a heating element in the form of a coil enclosed in a glass tube. The remaining space is advantageously filled with non- conductive material 19 such as asbestos wool or glass fibre. The container is preferably seated on a hollow base 8 through which air may circulate, e.g. through holes 22, and the egg holder may be in the form of a rack 3 hanging from the lid.
Patent GB-1528970-A (GB)
Title: Process of dimerization
IPC: B01J31/32
Filed: 1975-12-30
Abstract: 1528970 Dimerizatlon process HALCON INTERNATIONAL Inc 30 Dec 1975 [30 Dec 1974] 53197/75 Heading C2C Dimers of acrylonitrile, e.g. 2-methylene glutaronitrile, are obtained by reacting acrylonitrile in the presence of catalyst consisting essentially of: (a) at least one compound of the formula M(X) n , where M is magnesium, chromium or manganese, X is halogen and n is the valency of the metal, and (b) at least one nitrogen containing Lewis base which is (1) a tertiary monoamine of the formula R<SP>1</SP>-NR<SP>2</SP>R<SP>3</SP>, R<SP>1</SP> 1 R<SP>2</SP> and R<SP>3</SP> being optionally substituted alkyl, cycloalkyl, aralkyl or aryl, (2) a tertiary di- or poly-functional amine which contains at least two Lewis base nitrogen groups separated from each other by at least one carbon atom, and which are (a) N-disubstituted amino groups wherein each N-substituent is an optionally substituted alkyl, cycloalkyl, aralkyl or aryl radical, or (b) N-heterocyclic groups containing 3 to 20 carbon atoms, or (3) an N-substituted heterocyclic amine containing 3 to 20 carbon atoms in the heterocyclic ring, the N-substituent being an optionally substituted alkyl, cycloalkyl, aralkyl or aryl radical.
Patent GB-1438702-A (GB)
Title: Gas turbine components
IPC: F01D5/34
Filed: 1973-11-16
Abstract: 1438702 Making bladed rotors GARRETT CORP 16 Nov 1973 [20 Nov 1972] 53340/73 Heading B3A [Also in Division F1] A gas turbine motor is formed by stacking and bonding together a number of metal laminations 19, at least one of which has a radial slot (20), Fig. 5 (not shown), extending from a central base 15, and an adjacent lamination having a slot (21) inclined with respect to slot (20) but adapted to communicate therewith to define a cooling passage 17 interconnecting the passage 15 and the blade surface. The slots may be formed by etching. The laminations are then connected by diffusion bonding, and finish machined by electrical discharge machining. Etching fluid is passed through the cooling passages 17 after bonding, to remove sharp edges and obstructions.
Patent GB-1369471-A (GB)
Title: Logic circuit
IPC: H03K19/018
Filed: 1971-11-17
Abstract: 1369471 TTL circuits HONEYWELL INFORMATION SYSTEMS ITALIA SpA 17 Nov 1971 [17 Nov 1970] 53480/71 Heading H3T A switching circuit receives one input (of, for example several inputs) at the emitter of T8 whose base resistor is connected to +V and whose collector is connected through a semidirectional device such as D9 or a transistor (T19, Fig. 3, not shown) to the base of T5 which drives a series pair of output transistors 16, 17. The input 1 is connected to a voltage divider 6, 7 which changes the level of the " 1 " signal input to increase the swing of the binary incoming signal. The diode D9 (or T19) gives immunity to noise.
Patent GB-1185940-A (GB)
Title: A Process for the Production of Particle-Filled Fuel Rods
IPC: G21C21/02
Filed: 1968-11-13
Abstract: 1,185,940. Fuel elements. NUKEM NUKLEAR - CHEMIE UND - METALLURGIE G.m.b.H. 13 Nov., 1968 [15 Nov., 1967], No. 53744/68. Heading G6C. In a process for the production of fuel rods comprising cans packed with fuel particles of oxides, nitrides or carbides of fissile and fertile elements and, optionally, compounds of non- fissile elements, the particles are introduced into the cans in vacuo free from adsorbed harmful gases and vapours. The adsorption of such gases and vapours may be prevented during the preparation of the particles, either by operating in vacuo or in an atmosphere of dry harmless gases, e.g. He and/or O 2 . If for reason of apparatus design the adsorption of harmful gases and vapours cannot be avoided during the preparation of the particles, the harmful gas and vapour contents of the particles should be kept below a predetermined limit by heat-treating at a temperature above 200‹ C. in a vacuum of 10<SP>-1</SP> torr or less. It is of particular advantage to prevent readsorption by keeping the particles under the same or a better vacuum until they are introduced into the cans. In a particular example, a UO 2 - particle mixture of various grain fractions is dried and degasified at 450‹ C. in a vacuum of less than 10-1 torr. This mixture is then packed in vacuo in an evacuable packing machine and after it has been introduced into the cans, the packing is compressed by a ram or plunger and the cans vibrated longitudinally by means of a vibrator. The packing is thus compacted to the required level of for example 86% of the theoretical density. The cans may then be subjected to an after-treatment in which they are filled with pure He.
Patent GB-1067580-A (GB)
Title: Improvements in or relating to injection moulding machines
IPC: B29C48/64
Filed: 1966-10-16
Abstract: 1,067,580. Injection moulding machines. BRITISH UNITED SHOE MACHINERY CO. Ltd. Oct. 16, 1963 [Oct. 17, 1962], No. 54304/66. Divided out of 1,067,579. Heading B5A. The subject matter is all included in the parent Specification but the claims relate to the device for controlling feed to the injection cylinder.
Patent GB-1117707-A (GB)
Title: Improvements in or relating to shuttering
IPC: E04G13/02
Filed: 1965-12-22
Abstract: 1,117,707. Shuttering. K. DOHNAL. 22 Dec., 1965, No. 54351/65. Heading E1S. Column 1, edge beam 2, and floor shutters 3 are inter-connected in-situ before casting commences via flanges, e.g. 26 (Fig. 6, not shown) and vertical guide grooves, e.g. 18 (Fig. 4. not shown), which are pinned together through holes arranged horizontally in the flanges and groove walls. Edge, 4, and stop-end shuttering 5 may also be connected up to the rest of the shuttering by similar means. Circular, oval, or rectangular columns may be formed, and the floor may be flat or have a grid-work of integral support beams.
Patent GB-1193690-A (GB)
Title: Production of Lactones
Inventor: MARRIAN STANLEY FREDERIC
IPC: C07D315/00
Filed: 1967-11-30
Abstract: 1,193,690. Lactones. BRITISH HYDROCARBON CHEMICALS Ltd. 14 Oct., 1968 [30 Nov., 1967], No. 54458/67. Heading C2C. Lactones are prepared by reacting a di-tertiary or secondary-tertiary "1,4-dichloroalkane" with carbon monoxide, or a substance giving carbon monoxide under the reaction conditions (e.g. formic acid), in the presence of a strong acid, e.g. H 2 SO 4 , HF/BF 3  or H 3 PO 4 /BF 3 . "1,4-Dichloroalkane" is defined as a compound in which there is a saturated aliphatic chain of 4 carbon atoms with Cl substituted on the first and fourth carbon atoms of the chain and in which none of the 4 carbon atoms in the chain forms a ring with one of the other 3 carbon atoms. The chain may form part of a longer chain or one of the carbon atoms may form part of a ring which does not include the other three carbon atoms. Examples prepare the #-lactone of 2,2,5-trimethyl-5-hydroxyhexanoic acid from 2,5 - dichloro - 2,5 - dimethylhexane. Other specified starting materials are 2,5-dichloro - 2 - methylpentane and 1 - (3 - chlorobutyl)-1-chlorocyclohexane.
Patent GB-1160700-A (GB)
Title: Control System for Textile Roving Frame
IPC: D01H13/16
Filed: 1966-12-07
Abstract: 1,160,700. Stop motion; warning signals. JAMES L. HIGHSMITH & CO. 7 Dec., 1966 [11 Jan., 1966], No. 54830/66. Headings D1D and D1F In a stop motion for a roving frame the beam from a light source 20, 20' received by a photo-cell 21, 21' passes longitudinally of a row of flyers 17, 17' and is spaced forwardly of, above and outside the upper extremities of the flyers so that a broken or other roving end passes through the beam and causes a rapid change in the light intensity at the photo-cell which in turn is arranged to generate a signal which stops the roving frame. As shown a further photo-electric arrangement 30, 31 is arranged beneath the slivers running from guide bar 15 to the drawing mechanisms to detect sliver breaks or ends in this region and causes the frame to be stopped. The amplifiers associated with cells 21, 21<SP>1</SP> are designed to respond to rapid changes of light intensity only whereas the amplifier associated with cell 31 may respond to less rapid changes in light intensity. A visual or audible signal is provided, preferably such that a signal from 21 or 21<SP>1</SP> causes a light to glow continuosuly whereas a signal from 31 causes the light to flash.
Patent GB-1359289-A (GB)
Title: Bis-s-glycidyl compounds and compositions containing them
IPC: C07D303/34
Filed: 1971-10-29
Abstract: 1359289 Cyclo-octane derivatives CIBAGEIGY (UK) Ltd 29 Oct 1971 [19 Nov 1970] 55104/70 Addition to 1243004 Heading C2C [Also in Division C3] Novel bis-(glycidylthio) cyclo-octanes of formula where each n is 0 or 1, are prepared by reacting a cyclo-octanedithiol of formula with a chlorohydrin (specifically epichlorohydrin or glycerol dichlorohydrin) to give followed by dehydrochlorination
Patent GB-1367829-A (GB)
Title: Dc measuring instruments
Inventor: THANNHUBER J
IPC: G01R5/14
Filed: 1972-11-30
Abstract: 1367829 Moving iron electric meters J THANNHUBER [trading as HANS EINHELL] 30 Nov 1972 [3 Dec 1971] 55229/72 Heading G1Q A moving iron electric meter comprises a synthetic resin housing 10 having a first chamber containing a pivotally-mounted armature 2 of soft magnetic material and a second chamber containing a permanent magnet 3 for urging the armature to a zero position, and a coil 1 surrounding the armature to produce in it a magnetic field at right angles to that produced by the permanent magnet. The armature 2 is secured to a synthetic resin spindle mounted in trunnions 13 carried by the housing. The magnet is held in place by projecting ribs and shoulders 4-7. The coil 1 slips over the housing 10, and the coil/housing assembly then slides into a U-shaped channel (29), Fig. 3 (not shown) formed in a casing member (28), the coil terminals 17, 18 projecting through apertures (26, 27) in the rear of the casing member.
Patent GB-1487773-A (GB)
Title: Percussive tools
IPC: B25D17/24
Filed: 1974-12-20
Abstract: 1487773 Vibration damped tools DEMAG AG 20 Dec 1974 [23 Jan 1974] 55253/74 Heading B4C A cylindrical extension 4a on the handles 4 of a pneumatic tool 2 supports the tool 2 by a spring 6 and a second spring 10 mounted on a guide 4b of the extension 4a carries an axially displaceable mass 8. A second guide 4c is provided.